# Extensor tendon rupture and preoperative mri confirmations of suture anchor prolapse: a case report and literature review

## TL;DR

A rare case of suture anchor prolapse after finger tendon surgery was accurately diagnosed using MRI, highlighting its diagnostic value.

## Contribution

This is the first reported case of suture anchor prolapse confirmed by MRI after extensor tendon rupture surgery.

## Key findings

- MRI revealed bone connectivity and irregular signals indicative of suture anchor prolapse.
- Surgical confirmation validated MRI's accuracy in diagnosing this rare complication.

## Abstract

While suture anchors are widely used in medical procedures for their advantages, they can sometimes lead to complications, including anchor prolapse. This article presents a unique case of suture anchor prolapse at the base of the distal phalanx of the little finger after extensor tendon rupture reconstruction surgery.

A 35-year-old male, underwent extensor tendon rupture reconstruction using a non-absorbable suture anchor. After seven years the patient visited our outpatients complaining of stiffness, pain, and protrusion at the surgical site. Initial X-ray imaging suggested suggesting either a fracture of the distal phalanx or tendon adhesion but lacked a definitive diagnosis. Subsequent magnetic resonance imaging (MRI) revealed bone connectivity between the middle and distal phalanges with irregular signal shadow and unclear boundaries while maintaining a regular finger shape. MRI proved superior in diagnosing prolapsed suture anchors, marking the first reported case of its kind. Surgical intervention confirmed MRI findings.

Suture anchor complications, such as prolapse, are a concern in medical practice. This case underscores the significance of MRI for accurate diagnosis and the importance of tailored surgical management in addressing this uncommon complication.